/*
 * Copyright (C) 2010 Graham Allan
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.strath.cis.grallan.findbugs.adaptiveranking.util;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import edu.strath.cis.grallan.findbugs.adaptiveranking.RankingStateListener;

/**
 * @author Graham Allan (grallan@cis.strath.ac.uk)
 */
public class RankingStateNotifier {

	List<RankingStateListener> stateListeners = new CopyOnWriteArrayList<RankingStateListener>();

	public boolean addStateListener(RankingStateListener toAdd) {
		return stateListeners.add(toAdd);
	}

	public boolean removeStateListener(RankingStateListener toRemove) {
		return stateListeners.remove(toRemove);
	}

	public void doNotifyBugCollectionSet() {
		for (RankingStateListener listener : stateListeners) {
			listener.notifyBugCollectionSet();
		}
	}

	public void doNotifyReset() {
		for (RankingStateListener listener : stateListeners) {
			listener.notifyReset();
		}
	}

	public void doNotifyCanRefresh() {
		for (RankingStateListener stateListener : stateListeners) {
			stateListener.notifyCanRefresh();
		}
	}

}
